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Flyegypt have pranged 3 Boeing 737ís in the past week - action needs to be taken

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Flyegypt have pranged 3 Boeing 737ís in the past week - action needs to be taken

Old 18th Oct 2021, 11:13
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I have to agree with the last couple of sentences here. PPRuNe has lost objectivity - and thus also professionalism.
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Old 18th Oct 2021, 12:49
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You can also do it on a 320 as a couple of colleagues discovered the hard way.
It's a bit harder these days as the FWS will put up an ECAM warning to alert you of your error. Probably as a result of these events.
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Old 18th Oct 2021, 14:02
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Hmmm, I am not sure I would consider burst tires (tyres for my UK friends) and wheel issues a "prang"......now wrinkles and dents, O2 masks dropping, gear torn off, etc. that's more like it.....
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Old 18th Oct 2021, 14:13
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Ahh, how typical - Anson & Co moderating the moderators. Talk about objectivity!

If I think 3 gear/ wheel issues is a prang thatís what Iím going to call it; itís my opinion. Iím not trying to influence your narrow opinions.

This is a very serious issue and needs to be addressed and urgently investigated by the relevant authorities. Thatís all Iím saying.
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Old 18th Oct 2021, 15:04
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Having spent 41 years working on 737's I would classify this as 3 separate incidences of different failures.

The broken wheel a result of missing a small crack on inspection during the last tire buildup.\
The blown tire a result of an underinflated tire. It could have occurred at any time it was on the axle. Underinflated tires cause heat buildup and eventually failure .
The 4 blown tires by skidding on a wet runway and applying brakes before the wheels have come up to speed after touchdown. Locked wheel protection doesn't kick in until the wheel has come up to a certain speed.In the pictures you can see the surface is wet.

I have seen all 3 of these failures many times over 41 years and have seen multiple flat spotted tires on the same shift, broken rims about 3 times and blown tires almost weekly.
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Old 18th Oct 2021, 16:18
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Blown tyres weekly? Either some pretty shoddy maintenance or a very dodgy tyre supplier
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Old 18th Oct 2021, 16:24
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4HP, most people respect the right, and oft necessity of individual opinions in this forum; however, opinion without justification, factual evidence, argued reasoning is of little value; just clutter, chat, Ö

ďYou are not entitled to your opinion. You are only entitled to what you can argue for.Ē

https://theconversation.com/no-youre...r-opinion-9978
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Old 18th Oct 2021, 18:43
  #28 (permalink)  
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Yeehaw22

or a very large airline perhaps.
That aside I am always amazed to see how quickly today by looking at a photo or a FR24 printout so many are already explaining everything , and as a result some more passing immediate judgement of who is to blame and should be fired .
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Old 18th Oct 2021, 19:13
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I flew the 737 for many years and literally never saw any blown tyres, so for me three in a week in a small airline looks very unusual. I cannot agree that this happening weekly might be considered normal. It will be interesting to find out more, but if I worked for them I would be expecting some increase in ramp checks in the near future.
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Old 18th Oct 2021, 22:43
  #30 (permalink)  
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Thatís all Iím looking for lederhosen - a spotlight on the operator. 3 related issues in one week on a relatively small fleet is simply not normal.
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Old 18th Oct 2021, 23:08
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To be fair you were looking for more. I quote from your opening post: "When an airline starts breaking strong aircraft at the rate of 3 a week it’s time for regulators to shut this airline down".

I think shutting it down would be a little premature at this stage.
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Old 18th Oct 2021, 23:53
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Originally Posted by 4HolerPoler
This is a very serious issue and needs to be addressed and urgently investigated by the relevant authorities.
I'd like to think that the operator themselves are investigating these events...like their Safety Management System should lead them to do. I would expect any aircraft operator to treat every incident as an independent event in the first instance (to avoid confirmation bias, if nothing else) and for the investigation to identify any common causal or contributory factors, which, if there are any, means that the events are not, in fact, independent. To jump to conclusions on the basis of the level of analysis suggested in the original post is unwise.

Yes, one would expect the local regulator to take a look - ideally to see that the operator is correctly assessing the situation themselves. But with the three event all occurring in EASA-land, why not ask EASA to investigate? It is, after all, one of the reasons for requiring reporting from all member states and for setting up a central repository...you know, to identify trends which are not evident within a single State.

Last edited by Equivocal; 19th Oct 2021 at 00:10.
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Old 19th Oct 2021, 01:37
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4HolerPoler, just for the sake of clarity, who is moderating this thread? If it's you, isn't that sort of a conflict? I'm not being a wise guy and don't want to get banned for asking.... just wondering what policy is.
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Old 19th Oct 2021, 02:23
  #34 (permalink)  
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I don’t moderate this forum winemaker - I’m on the Africa, Middle East & Bizjet forums.
Been moderating them for around 25 years now.
Africa & the Middle East are my back yard. Hence my concern and request for oversight. When I say “shut it down” I don’t mean close the shop, I mean institute a safety shutdown. I have to snigger when I read first-world pundits like Equivocal (who writes extremely well) suggesting a low-cost Egyptian airline conduct their own internal investigation. Clearly the learned gentleman has little to no exposure to Egyptian aviation ethics and morals, notably on the low-cost end of the line. What a hoot!

So by all means, jump on your moral bandwagons and chastise me for being overbearing in my concern and judgment. I will reserve my right to remain significantly concerned that when a low-cost Egyptian airline has 3 landing gear issues in one week in European locations that the holes in the cheese are lining up and bells should be ringing.
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Old 19th Oct 2021, 02:55
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I have many hours on the B737 and have only seen blown tyres on two occasions in my airline.
One incident a high speed reject at max. T/O weight.
Another with a mishandled Anti-skid Inop. Landing.
Otherwise its very , very hard to blow tyres on a 737.
I’d be looking at maintenance or dispatch with an MEL issue.
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Old 19th Oct 2021, 06:12
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After many thousand hours PIC on the 737, I never experienced any of these problems. Nor earlier on the 727. Focus on the common denominators and go from there.
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Old 19th Oct 2021, 10:14
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Some may jump on me for speculating.

Perhaps someone, somewhere is supplying "scrapyard" components from old airframes, which then fail?

Or it could be an engineering problem - perhaps the tyre pressure gauge they use is faulty and the tyres are being under-inflated, causing overheating and failure. Or they are setting the wrong pressure for other reasons.

The first two incidents could have been caused by under-inflated tyres. The last one suggests a braking problem to me, so probably unrelated - unless the treads of all four tyres were worn below the limits?
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Old 19th Oct 2021, 12:38
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Wonder if these aircraft have been parked up somewhere for a decent amount of time throughout the pandemic somewhere hot and sunny with out covers fitted? UV degradation maybe?
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Old 19th Oct 2021, 14:22
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From what I could glean both SU-TMJ and TMM had only spent a short period in storage between March and July in 2020. Both were certainly fairly active during 2021.
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Old 19th Oct 2021, 15:44
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Uplinker

It's rare for an under-inflated tyre to cause the two halves of a wheel to separate,
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